• 310: Starvation vs Dehydration: Who Loses, Who Wins?
    May 12 2024

    TWiM explores the plasticity of the adult human small intestinal stoma microbiota, and survival and rapid resuscitation that permit limited productivity in desert microbial communities.

    Hosts: Vincent Racaniello, Michael Schmidt, Petra Levin and Michele Swanson.

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    Links for this episode
    • Plasticity of small intestinal stoma microbiome (Cell Host Micr)
    • Desert microbial communities (Nat Comm)
    • How soil microbes survive in the desert (Science Daily)
    • Negev Desert (WikiCommons)
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    59 mins
  • 309: Stomach Acid Can Be Your Friend
    Apr 26 2024

    Today on TWiM, a charcuterie invasion, and how that acid in your stomach may protect from the invading hordes of microbes.

    Hosts: Michael Schmidt, Petra Levin and Michele Swanson.

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    Links for this episode
    • 2024 Salmonella outbreak linked to charcuterie meats
    • Multitier regulation of the E. coli extreme acid stress response by CsrA
    • Commentary: Peeling the onion: additional layers of regulation in the acid stress response
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    46 mins
  • 308: Living in a Community World
    Apr 13 2024

    TWiM reviews a case of E. faecium bacteremia treated with combination bacteriophage and antibiotic therapy, and how dopamine receptor D2 confers colonization resistance via microbial metabolites.

    Hosts: Vincent Racaniello, Michael Schmidt, Petra Levin and Michele Swanson.

    Guest: Mark O. Martin

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    Links for this episode
    • Matters Microbial
    • Distinct Fusobacterium dominates colorectal cancer (Nature)
    • Bacterial subspecies that might drive colon cancer (Nature)
    • A bacterial strain linked to colon cancer (Nature)
    • Spatial perspective on bacteria in tumors (Nature)
    • Colorectal cancer in the young (Yale Med)
    • Surface colonization by Flavobacterium johnsoniae promotes its survival (mBio)
    • THOR, a model microbiome (mBio)
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    1 hr and 7 mins
  • 307: Attaching and Effacing on a Pedestal
    Mar 30 2024

    TWiM reviews a case of E. faecium bacteremia treated with combination bacteriophage and antibiotic therapy, and how dopamine receptor D2 confers colonization resistance via microbial metabolites.

    Hosts: Vincent Racaniello, Michael Schmidt, Petra Levin and Michele Swanson.

    Subscribe to TWiM (free) on Apple Podcasts, Spotify, Android, RSS, or by email.

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    Links for this episode
    • Vincent’s interviews at SXSW
    • Bacteriophage and antibiotic therapy for E. faecium bacteremia (mBio)
    • Dopamine receptor D2 confers colonization resistance (Nature)
    • CDC’s Reports of Selected E. coli Outbreak Investigations
    • Brett Finlay’s narrated EPEC animation
    • Colonization resistance by gut microbial metabolome (ACS Chem Biol)
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    50 mins
  • 306: Spirulina Smoothies
    Mar 15 2024

    TWiM discusses the identification of natural products from reconstructed ancient bacterial genomes, and how plant mRNAs move into a fungal pathogen via extracellular vesicles to reduce infection.

    Hosts: Vincent Racaniello, Michael Schmidt, and Petra Levin.

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    Links for this episode
    • Natural products from ancient bacterial genomes (Science)
    • Plant mRNAs move into fungal pathogens (Cell Host Microb)
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    Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv

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    53 mins
  • 305: The Marvel of MAC
    Mar 2 2024

    TWiM reviews the ongoing cholera outbreak in Africa, and research showing that gut complement induced by the microbiota blocks pathogens and spares commensal bacteria.

    Hosts: Vincent Racaniello, Michael Schmidt, Petra Levin and Michele Swanson.

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    Links for this episode
    • Cholera in Southern Africa (Africa CDC)
    • Deadly cholera outbreak in Africa (NY Times)
    • Pediatric cholera in sub-Saharan Africa (Curr Op Ped)
    • Gut complement spares commensals (Cell)
    • Take the TWiM Listener survey!

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    50 mins
  • 304: A New blue cheese-making fungus
    Feb 17 2024

    TWiM reveals a new population in the blue cheese-making fungus Penicillium roqueforti and identification of a quorum-sensing autoinducer and siderophore in uropathogenic Escherichia coli.

    Subscribe to TWiM (free) on Apple Podcasts, Spotify, Google Podcasts, Android, RSS, or by email.

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    Links for this episode
    • New blue cheese-making fungus (Evol Appl)
    • Threat to Camenbert cheese (Guardian)
    • French Cheese Under Threat (CNRS News)
    • Fungadapt project (YouTube)
    • Microbes Make the Cheese (ASM)
    • Yersiniabactin in uropathogenic Escherichia coli (mBio)
    • Public goods and cheating in microbes (Curr Biol)
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    58 mins
  • 303: Can Our Microbiome Break Our Hearts?
    Feb 3 2024

    TWiM reveals a database of genome sequences of thousands of Mycobaterium tuberculosis, allowing association with resistance phenotypes to 13 antibiotics, and microbe-derived uremic solutes that enhance thrombosis potential in the host.

    Hosts: Vincent Racaniello, Michael Schmidt, and Michele Swanson.

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    Links for this episode
    • M. tuberculosis genomes and antimicrobial resistance (PLoS Biol)
    • The CRyPTIC consortium
    • BashTheBug
    • Zooniverse
    • Microbial solutes enhance thrombosis (mBio)
    • Can our microbiome break our heart? (mBio)
    • Pathogenesis of cardiovascular disease (EJIFCC)
    • How Kidneys Work Video (Mayo Clinic)
    • What is a metaorganism? (Zoology)
    • Take the TWiM Listener survey!

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    57 mins